APDI 9010423 HVAC Heater Core - Rear

APDI 9010423 Rear Heater Core for Montero Sport

APDI 9010423 is a rear HVAC heater core built for Mitsubishi Montero Sport applications from 1997-2015. It uses an aluminum core and aluminum tanks for a lightweight, corrosion-resistant construction, with 1/2-inch inlet and outlet pipe diameters for the specified rear heater core fitment.

Key Features

• APDI Heater Core line for HVAC replacement applications
• Aluminum core material and aluminum tank material
• Core dimensions: 4-3/4 in. height, 4-3/8 in. width, 1 in. thickness
• 1/2 in. inlet pipe diameter and 1/2 in. outlet pipe diameter
• Rear heater core application for Mitsubishi Montero Sport
• Part number 9010423 for ordering and catalog lookup

Product Details

This APDI heater core is specified for the rear HVAC system in the Mitsubishi Montero Sport. The aluminum construction supports efficient heat transfer while keeping the core compact, and the listed dimensions help match the original rear heater core layout. APDI 9010423 is a direct-fit style replacement for 1997-2015 Mitsubishi Montero Sport rear heater core service, and this part number 9010423 is also referenced in aftermarket cross listings for the same application.

APDI’s Heater Core product line focuses on HVAC replacement components for vehicle heating systems. For Montero Sport rear heat service, the APDI 9010423 provides the core size, pipe diameter, and aluminum construction details buyers use when matching a replacement heater core to the vehicle’s rear HVAC housing.

Common Issues This Part Addresses

• Loss of rear cabin heat in a Mitsubishi Montero Sport
• Coolant seepage from a damaged heater core
• Restricted heat output caused by internal core blockage
• Corrosion-related failure in the rear HVAC heater core
• Fitment mismatch when replacing the rear heater core assembly

Installation Notes

Verify the rear HVAC housing, inlet and outlet pipe size, and core dimensions before installation. This part is listed for rear position use on Mitsubishi Montero Sport models from 1997-2015. Confirm the vehicle’s HVAC configuration and compare the original core measurements to APDI 9010423 before final assembly.

Quality Assurance

APDI supplies HVAC replacement parts with application-specific dimensions and material specifications to support accurate fitment selection. Cross-reference listings include Four Seasons 90078 and Spectra Premium 93078 / 98078 for the same application.